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No. 381,265. Patented Apr; 17-, 1888 y INVENTOR:

ATTORNEYS.

g UNITED STATES PATENT ()rrics.

HENRY ARNOLD MARTENS, on ST. JOSEPH, DAKOTA TERRITORY.

BAG-FASTENER;

SPECIRICATION forming part of Letters Patent No. 381,265,date1-Apri1 I7, 1888. v I Application filed January 17, 1888. Serial ll'o. 261,020. (No model.)

To all whom it may concern.-

Be itknown that I, HENRY ARNOLD MAR-' TENS, of St. Joseph, in the county of Grant and Territory of Dakota, have invented-a new and Improved Bag-Fastener, of which the following is a full, clear,and exact description.

The objectof the invention is to provide a metallic fastener designed especially for use on grain-bags, and which can be easily applied'to a bag and will securely fasten the same;

The invention consists in'details of construction, as will be hereinafter fully described and claimed. p

Reference is to'be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.-

Figure 1 is a perspective view of a bag-fastener of my improved construction in the open position. Fig. 2 is a side view, partly in section, the device being shown closed; and Fig.

3 is an edge view.

Two clamps,A B, are hinged together at one end andhave formed at their opposite ends.

headed projections O, to afford handles in forcing the clamps together on the bag. a The clamp A is formed with projecting arms D at the upper end, below the headed projection 0 thereof, which latter is slotted at itsbase, as at a, to allow the passage therethrough of the arm E,,projecting inwardly from the opposite clamp, B, the arms D serving to guide the'arm E. The-under side ofthe arm E is toothed to engage a spring-bolt, F, that works in a pocket in the clamp A, the beveled outer end of the said b'olt projectinginto the slot a in the path of the toothed arm E. A stud, f, on the bolt F projects outward through a slot, G, formed B, being correspondingly curved outward to force the bagging into the said groove when the clamps are brought together in the action of clamping the bag.

Patent V V v 1 The combination, in a bag-fastener, of two My improved" device may be clamped on 'a bag by a boy,as but verylittle skill or pressure'isrequired in its manipulation, and it will be found especially advantageous in cold weather, for it may be clamped and unclamped without the workman or boy removingghis mittens.

. One of the projectionsO is formed with an aperture, 0, for the insertion of a string-by which to secure the clamp to an e'mptybag, should it be'desired to do so.

Having thus fully described my lIIVBDtiOII I claim as new and desire to secure by Letters clamps hinged together, one clamp being formed witha toothed arm and the other be;

ing provided with a spring-boltadapted to' engage the said toothed arm, substantially as 7 shown and described.

2. The clamp A, provided in a pocket thereof with a spring-bolt, F,Tin combination with the clamp B,- hinged to the clamp A, and

of with a spring-bolt, F,'and formed with a v 7 formed with a-projecting ,toothedarm, E, for, engagement with the boltIF, both .clamps being formed with the headed projections O, to.

longitudinal groove, H, in theinner face, in

combination withthe clamp B, curved on its inner face to correspond with the groove H, and formed with a toothed arm, E, for engagement with the bolt F, substantially as shown and described.- V i 4. The clamp A, formed with a projection, G, the said projection being slotted at its base,

as at a, the spring-bolt F in a pocket in said clamp carrying the stud f, in combination 7 with theclamp B, also having a projection,0,

and formed with the toothed arm E, substantially as shown and described.

Witnesses:

C. W. MARTENS Y E. E. GLOMSTAD.

HENRY ARNOLD MART NsQ 

